ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
27.4
Session ID : IDY2003-14
Conference information
High color purity green electroluminescent devices used Eu^<2+> doped CaAl_2S_4
Yoshiaki OnoMitsuhiro KawanishiNoboru MiuraHironaga MatsumotoRyotaro Nakano
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Abstract
The high Luminance electroluminescent (EL) device having excellent color coordinates were developed. A CaAl_2S_4:Eu phosphor exhibited the purest green photoluminescence among Eu^<2+> ion doped IIa-IIIb_2-S_4 group phosphors. CaAl_2S_4:Eu EL devices were prepared by the two target pulsed-electron-beam evaporation method. The maximum luminance level under 1 kHz sinusoidal wave voltages was over 4,000 cd/m^2. Commission Interantionale de 1'Eclairage (CIE) color coordinates were x=0.121, y=0.670.
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© 2003 The Institute of Image Information and Television Engineers
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